body, html {
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    background: url('../images/background.jpg') no-repeat center center fixed;
    background-size: cover;
    min-height: 100vh;
    display: block;
}

.container {
   height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.login-container {

    background: rgba(255,255,255,0.85);
    color: #222;
    max-width: 400px;
    max-height: 650px;
    width: 100%;
    height: 100%;
    padding: 20px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    border-radius: 5px;
}

.header {
    font-size: 38px;
    font-weight: bold;
    text-align: center;
    line-height: 150px;
    color: #333;
}

.btn {
    text-align: center;
    padding: 10px;
    width: 100%;
    margin-top: 20px;
    background-image: linear-gradient(to right, #b8860b, #000);
    color: #fff;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    border-radius: 10px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    transform: translateZ(0);
}

.msg {
    text-align: center;
    line-height: 88px;
    position: relative;
    top: 70px;
}
.error-message {
    color: #dc3545;
    margin-bottom: 15px;
}